Low Phase Noise Varactor Diode SKYWORKS SMV1801-079LF Suitable for GSM PCS CDMA and Analog Phone VCOs

Key Attributes
Model Number: SMV1801-079LF
Product Custom Attributes
Capacitance Ratio:
22@C1V/C28V
Diode Configuration:
Independent
DC Reverse Voltage(Vr):
30V
Diode Capacitance:
2.89pF@28V,1MHz
Mfr. Part #:
SMV1801-079LF
Package:
SC-79
Product Description

Product Overview

The Skyworks SMV1801-079LF is a silicon hyperabrupt junction varactor diode designed for battery-operated wireless systems. It features a high capacitance ratio and low series resistance, making it suitable for low phase noise Voltage-Controlled Oscillators (VCOs) operating at frequencies up to and above 2.5 GHz. Key applications include low-noise and wideband UHF and VHF VCOs for GSM, PCS, CDMA, and analog phones. This varactor is provided in an ultra-small SC-79 package and is rated MSL1 at 260 C.

Product Attributes

  • Brand: Skyworks Solutions, Inc.
  • Product Line: Hyperabrupt Junction Tuning Varactor
  • Package Type: SC-79
  • Moisture Sensitivity Level: MSL1 (260 C per JEDEC J-STD-020)
  • Compliance: RoHS-compliant (Pb-free symbol or LF in part number)
  • Cross Reference: NXPs BB182

Technical Specifications

Parameter Symbol Test Condition Minimum Typical Maximum Units
Reverse voltage VR 30 V
Forward current IF 20 mA
Power dissipation PDIS 250 mW
Operating temperature TOP -55 +125 C
Storage temperature TSTG -55 +150 C
Reverse current IR VR = 30 V 10 nA
Capacitance CT f = 1 MHz, VR = 1 V 54.00 62.00 pF
f = 1 MHz, VR = 28 V 2.48 2.89 pF
Capacitance ratio CTR CT @ 1 V / CT @ 2 V 20.6
CT @ 1 V / CT @ 28 V 1.31
CT @ 25 V / CT @ 28 V 1.05
Series resistance RS f = 470 MHz, VR = 3 V 1.2
Breakdown voltage VBR IR = 10 A 32 V

SPICE Model Parameters

Part Number CJO (pF) VJ (V) M CP (pF) RS () LS (nH)
SMV1801-079LF 85 10 4.4 2.6 1.1 0.8

2411220307_SKYWORKS-SMV1801-079LF_C6705339.pdf

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